RFR: 1480: Update all openjdk.java.net->openjdk.org

Tue Jun 14 17:15:51 UTC 2022

The Skara source tree contains a lot of references to openjdk.java.net. All of them need to be updated to the new URL openjdk.org. Some of these are essential for core functionality such as jcheck so this is quite urgent.

This patch is a simple search-replace.

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Commit messages:
 - SKARA-1480

Changes: https://git.openjdk.org/skara/pull/1338/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=1338&range=00
  Issue: https://bugs.openjdk.org/browse/SKARA-1480
  Stats: 435 lines in 54 files changed: 0 ins; 0 del; 435 mod
  Patch: https://git.openjdk.org/skara/pull/1338.diff
  Fetch: git fetch https://git.openjdk.org/skara pull/1338/head:pull/1338

PR: https://git.openjdk.org/skara/pull/1338